Application of a new nucleophilic addition/ring closure (NARC) sequence to the synthesis of enantiomerically-pure 2,8-dioxabicyclo[3.2.1]octanes of relevance to the squalestatins and zaragozic acids
PL rapid method for the enantioselective construction of 2,8-dioxabicyclo[3.2.1]octanes of relevance to the zaragozic acids, employing a tandem NARC sequence of aldol and intramolecular Wacker reactions, is described. (C) 1999 Published by Elsevier Science Ltd. All rights reserved.